Die holder



May 11 1926. 1,584,643

- o. M. PANNIER ET AL DIE HOLDER Filed Feb. 4, 192's @llm /fi INVENTORS':

- ATTORNEY Patented May ll, 192d.

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OSCAR M. PANNIER, OF BEN AVON, AND LEON C. I-IAUER, F PITTSBURGH, PENNSYL VANM, ASSIGNORS TO IPANNIEE BROS. STAMP GEL, OF PITTSBURGH, PENNSYL- VANIA, A COR?OBATION OF PENNSYLVANIA.

DIE HOLDER.

Application filed February 4, 1925. Serial No. 6,694.

Our invention consists of an improvement in die holders of the kind used for stamping metal. It has in view to provide such a device comprising a one-piece head having a terminal socket for the individual type or stamping dies, a slidable holder for holding and releasing the dies, a locking trigger therefor, and other features of improvement as hereinafter described.

' The present invention is an improvement in that class of devices disclosed in the application of Leon 0. Hauer, filed December 19, 1924, Serial No. 757,071.

Inthe drawings, showing one preferred embodiment of the invention:

Fig. 1 is a perspective view of the die holder and dies in position thereon;

Fig. 2 is a central vertical sectional view thereof;

Fig. 3 is a plan slide retracted;

Fig. 4 is a perspective detail view of the holding slide; I

Fig. 5 is a sectional detail view on the line 25 VV of Fig. 1;

Fig. 6 is an endview in elevation, showing a modified construction of the holding slide.

The main head or body 2 of the die holder is generally rectangular in cross section and has a narrower holding portion 3 provided with a middle transverse hole 4 for insertion of a helve or handle. Said handle extension and its hole are disposed longitudinally or transversely of the main head 2, providing for swinging the dies against a hot metal surface by inserting a handle therein.

The main head portion 2 at its opposite end is provided with a rectangular socket 5, of suflicient proportions lengthwise and crosswise to receive a series of dies 6 by their widened bases snugly within it for positive seating against a hardened steel bearing bar 7 Said bar is made of a round section so that a corresponding round receiving hole may be easily bored or drilled clear through the head to receive it, as in the application above referred to. The middle bearing face for the dies is planed 0E flat, as at 9, between the cylindrical ends, and the bar is held against rotation by one or more suitable keys or pins. In this manner, the flat View, showing the holding hearing seat 9 is positively maintained at right angles to the walls of the socket 5 for direct contact with the base of the dies 6, so as to absorb the thrust of the blows incident in using the dies in their intended way.

The several dies 6 are shouldered, as at 11, so as to provide a positive retaining abutment for engagement by the inner edge of the L-shaped slidable clamp 12, as in Fig, 2. Said clamp is slidably mounted along a suitably recessed corner portion of the base 2, and is provided with a dovetail or other suitably shaped retaining slide member 13,

fitting within a corresponding longitudinal socket 14. The dovetail retaining strip 13 extends somewhat beyond the retaining shelf portion, together with an overlapping side extension 15, as in Fig. 4, so that, when it is thrust inwardly to holding position, as

in Fig. 1, the entire slide occupies a position co-entensive with the length of the head 2.

The end portions 16 of head 2, defining the.

dovetail strip 13 is provided with notches or ratchet cavities 17 and 17 respectively. These are of the form shown in Fig. 4, utilizing a combination of tapered and shouldered faces for engagement of the correspondingly shaped end 18 of a locking key 19. Said key is preferably of dovetail or other suitable form in cross section for slidable mounting across the end of the head 2, as in Fig. 5. A cushioning spring 20. is interposed between its rear end and an inserted abutment 21, providing thrusting pressure to ensure interlocking engagement with the slidable bar 12 in either position.

When open, as in Fig. 3, the slide is locked against further outward movement by key 19, but may be thrust inwardly without retracting the key, which will automatically recede, due to the tapered face of socket 17. Vhen thrust clear in, as in Fig. 1, the key will move outwardly, engaging socket 17, and will hold the slide against accidental displacement or movement, until the locking keyis retracted. Said key and also the-outer 'face'of the slide bar are'preferably knurled or otherwise roughened,- asindicated, so as to facilitate engagement by the finger or thumb of the user for easy and quick adjustment.

In Fig. 6, we show a modilied construction of the device, in which thedies 6 may be of ordinaryconstruction of uniform width from one end to the other, but provided with a cross groove 22, as in standard the or type construction. The slide 12 in such case is completely within the body portion of the head 2, :slidably mounted as just described, and held in the same way by locking. key 19, engaging corresponding sockets 16 and '17 in theinner upper vface of the slide. Slide 12, however, in such construction is provided with a middle longie tudinal :key or spline- 23, fitting .inwardly in acorresponding recess in the main hea'd and extending across theseveral dies at the position 'of their several crossgrooves 22, *whereby; to engage andwfixedly hold them when inserted, and to release them-when the-slide is .w'rtlidrawn,. as will be readily undo stood;

in either constructiomit will be seen 'that the-dies will-befixedly held in position and bear inwardly againstthe face-of bar "Landwithin ithe cavity 5,;and are very firmly-and positively held. Vith :either the shouldered engagement with the slide, or the'grooved engagement with its inwardly extending rib, the same 'etfectwill'be secured. The movement of the champingibar .in either case is comparatively limited and restricted to the length of the die eavity,.iand the mounting of the holding slide bar and its locking'key is comparatively sim1)le'=,-eificient, and durable. under 'the strainsof service.

The device may obviously be made in any desired size-or proportions, is easily manipulated, and readily used, either with or without the swinging handle.

What we claim is:

l. A holder for a removable die consisting-of a body member having a die socket, a slidably mounted clamping bar for the dies, and a locking device for holding the clamping bar open or closed.

2. A holder for a removable die consisting of a body member having a die socket, a slidably mounted clamping bar for the dies, and .a spring actuated locking device for holding the clamping bar open or closed.

3..A holder for a. removable die consisting of a body member having a die socket, a slidably mounted clamping bar for the dies having .a portion adapted to-engage a die when mounted in the socket, and a spring actuated locking device for holding the clamping bar open or closed.

4-2L holder for aremovable die consisting of a body member having a die socket, a slidably mounted holding bar for the dies provided with a plurality of locking sockets, and aspring actuated lockingkey adapted to engage either of said sockets to hold the bar in'closed or .open position respectively.

5. In combination with a-die holder provided with a receiving socket, a slidably mounted retaining bar therefor having a portion "adapted to engage vthe dies and a dovetail retaining slide member, and a springactuated locking key.

6. In combination with a die holder provided with a :receiving socket, a slidably mounted retaining bar therefor having a portion adapted to engage the dies and a. dovetail retaining slide member having a pair of taper face shouldered sockets, and a. spring actuated locking key 'mounted in the holder having :a terminal adapted to engage one'or the otherof saidsockets.

In testimony whereof we hereunto alli'x our signatures.

OSCARHM. PANNIER. LEON C. .HAUER. 

